In ultra-trail, mandatory gear is not a formality. It’s what allows you to stay autonomous, protected, and able to handle the unexpected: changing weather, night outside, cold snap, injury, or a refreshment point farther than expected.
The goal is not to fill your pack randomly. You need to choose reliable, light, compact, and truly usable gear during the race. A waterproof jacket, rain pants, a suitable pack, a headlamp, something to drink, eat, and ensure your safety: each item has a specific role.
Here’s how to build a coherent ultra-trail checklist without weighing yourself down unnecessarily.
Why does mandatory gear exist in ultra-trail?
An ultra-trail exposes you to conditions you don’t always control: altitude, cold, rain, wind, night, long stretches between refreshment points, isolation, or advanced fatigue. Even if you start with good weather, conditions can change quickly, especially in the mountains.
The list imposed by the organization is meant to guarantee a minimum of autonomy and safety. It protects the runner but also facilitates rescue work if you have to stop for a long time or wait for help.
The waterproof jacket: the most critical piece
On an ultra, your waterproof jacket is probably the most important item on your checklist. It must protect you from rain and wind while avoiding the sauna effect when you keep moving.
For a long race, focus especially on three criteria: waterproofness, breathability, and pack compatibility. A jacket that works well without a pack can become uncomfortable if it pulls on the back or compresses the straps once worn over your vest.
A jacket designed for ultra-trail: ultra-light, compact, and equipped with an MP+® 25K / 50K membrane. Its gusset compatible with a pack up to 12 L allows you to put it on over your vest without reorganizing everything during the race.
Recommended if you want a mandatory jacket that is truly usable in changing conditions without sacrificing weight.
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Waterproof pants: often forgotten, but crucial in the mountains
Waterproof pants are sometimes seen as a regulatory burden. However, as soon as the weather worsens, they can become essential to limit cooling, especially if you move slowly, wait at a refreshment point, or cross an exposed section.
In ultras, it must above all be light, compact, and easy to carry. You won’t necessarily wear it for long, but you need to be able to rely on it when you really need protection.
Waterproof pants compatible with ultra requirements, designed to stay in the bag without taking up space. With its MP+® 20K/20K membrane and 85 g weight, it meets the main need: to protect you effectively without weighing you down.
Choose this if your rules require rain pants or if you’re heading into a long race with uncertain weather.
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The trail running bag: the foundation of your autonomy
The trail vest is not just a container. It organizes your entire race: hydration, nutrition, jacket, pants, headlamp, survival blanket, phone, accessories. A good bag must stay stable, allow quick access, and keep your gear well distributed.
For an ultra, the right volume mainly depends on the mandatory list, the weather, and your level of self-sufficiency. A 12 L can be enough if you travel light and the list is controlled. A 15 L offers more room if you want more organization, more pockets, or if the weather requires more clothing.
The most minimalist choice for ultras if you want to stay light while carrying the essentials. With its 200 g weight, French manufacturing, and 2 included EasyFlask 600 mL flasks, it covers the basics for a quick and efficient setup.
Choose this if your priority is weight and you know how to optimize your gear.
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More versatile, the Responsiv 15L is suitable if you want more organization and room. Its 10 pockets, including one waterproof, allow you to separate your mandatory gear, nutrition, and accessories without wasting time.
Choose this if you want more storage, easier access, and more comfortable organization for long distances.
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Accessibility: what you need to grab without stopping
In ultras, you need to be able to drink, eat, take out a pair of gloves, grab your headlamp, or get your phone without emptying your bag every time. Accessible pockets at the front and sides are not a detail: they help you stay smooth.
Before the race, organize your bag by frequency of use. What you use every 20 to 30 minutes should stay in front. What you rarely use can go to the bottom or in a more secure pocket.
Actual volume: don’t choose just based on liters
A well-organized 12 L bag can be more efficient than a poorly packed 15 L one. Conversely, a 12 L bag that’s too small can force you to compress your gear, make access complicated, and create discomfort. The right volume is the one that matches your actual mandatory list, not just the announced distance.
The headlamp: see, be seen, and keep clarity
As soon as a race goes at night, the headlamp becomes a central element. It’s not just for seeing the path: it helps you read footing, anticipate stones, spot markings, and stay focused when fatigue sets in.
For an ultra, focus especially on battery life, comfort on the head, stability on descents, and the possibility of having a backup battery or battery. A headlamp that is too weak or poorly adjusted can cost you a lot of mental energy.
Lighting accessories to prepare
According to the rules, a spare battery or a second light source may be required. Always store it in an accessible pocket protected from moisture. The right reflex: test your headlamp in real conditions, with the cap or beanie you will wear on race day.
Hydration: avoid running dry between aid stations
Most ultra-trails require a minimum water reserve. But beyond the rules, your hydration must be easy to manage. If drinking requires effort or stopping, you risk drinking too late.
Front flasks remain very practical for controlling what you have left and drinking regularly. A hydration bladder can offer more capacity, but it sometimes makes tracking the amount more difficult. The right choice depends on your bag, the distance between aid stations, and your drinking habits.
Electrolytes and sports drinks
On long distances, water alone is not always enough. When you sweat, you also lose sodium and minerals. A sports drink or electrolytes can help you maintain a better balance, especially in hot weather or on long sections between aid stations.
Nutrition: your energy must be accessible
In ultra, your nutrition is part of the mandatory gear in a practical sense: if you can’t eat regularly, you risk hitting a slump, losing clarity, and making management errors.
Plan a simple strategy: some nutrition immediately accessible, a larger reserve in the bag, and a few different options to avoid nausea. Alternating liquid, solid, sweet, and sometimes salty can help over long durations.
Mandatory safety gear
Each race has its own list, but some items almost always come up: survival blanket, whistle, charged phone, food reserve, water reserve, waterproof jacket, sometimes waterproof pants, reusable cup, elastic band, or ID.
These items may seem secondary as long as everything goes well. But if you have to stop, wait, help another runner, or face a weather change, they become essential.
Accessories not to overlook
A beanie, gloves, a neck gaiter, a cap, anti-chafing cream, or blister plasters aren’t always mandatory, but they can really save your race. In ultra, a small discomfort repeated for hours rarely stays minor.
How to choose your mandatory gear well?
The best gear is the one you’ve already tested. Don’t discover your jacket, pants, headlamp, or pack on race day. Test them in training, ideally in conditions close to the race.
Find the right balance between weight and reliability. Ultra-light doesn’t mean fragile, but every piece must have a real function. Conversely, carrying too much “just in case” can end up weighing you down after several hours.
Do a run with your pack loaded as on race day. You’ll check bounce, pocket access, jacket comfort, and flask stability.
Rain, cold, night, distant aid station: your gear must meet real situations, not just tick off a list.
Nutrition, headlamp, gloves, phone, and water should be easy to access without stopping for long.
Requirements change depending on the race. Always check the official list before finalizing your gear.
In summary: your ultra-trail checklist must remain useful
Mandatory gear isn’t there to fill your pack. It should allow you to stay self-sufficient, protected, and efficient when the race gets long, cold, wet, or uncertain.
A reliable waterproof jacket, compact pants, a well-organized pack, a tested headlamp, water, energy, and safety equipment: these are the basics. The rest depends on your race format, the weather, and your experience.
Prepare your gear like you prepare your training: with method, tests, and adjustments. This is often what turns a rule constraint into a real advantage on the trail.
